DE427418C - Process for separating napins from pinene-napins mixtures - Google Patents

Process for separating napins from pinene-napins mixtures

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Publication number
DE427418C
DE427418C DEA43547D DEA0043547D DE427418C DE 427418 C DE427418 C DE 427418C DE A43547 D DEA43547 D DE A43547D DE A0043547 D DEA0043547 D DE A0043547D DE 427418 C DE427418 C DE 427418C
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Germany
Prior art keywords
pinene
napins
mixtures
percent
alcohol
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Expired
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DEA43547D
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German (de)
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GEZA AUSTERWEIL DR
Original Assignee
GEZA AUSTERWEIL DR
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Application filed by GEZA AUSTERWEIL DR filed Critical GEZA AUSTERWEIL DR
Priority to DEA43547D priority Critical patent/DE427418C/en
Application granted granted Critical
Publication of DE427418C publication Critical patent/DE427418C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/10Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2602/00Systems containing two condensed rings
    • C07C2602/36Systems containing two condensed rings the rings having more than two atoms in common
    • C07C2602/42Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)

Description

Verfahren zum Abtrennen von Nopinen aus Pinen-Nopinengemischen. In der Patentschrift 400253 ist ein Verfahren beschrieben, wonach man Camphen aus seinen Gemischen mit Pinen durch mit Wasser mischbare organische Lösungsmittel verschiedenen Wassergehaltes auswaschen kann.Process for separating napins from pinene-napins mixtures. In the patent specification 400253 describes a process, after which camphene from his Mixing with pinene by various water-miscible organic solvents Can wash out water content.

Es wurde nun die unerwartete Beobachtung gemacht, daß dieses Verfahren nicht nur zur Trennung von Pinen und Camphen, sondern auch zur Trennung der einander viel näher verwandten bizyklischen Terpene Pinen und Nopinen (ß-Pinen) anwendbar ist.The unexpected observation has now been made that this procedure not only to separate pinene and camphene, but also to separate each other much more closely related bicyclic terpenes pinene and napene (ß-pinene) can be used is.

Wenn man die Löslichkeiten des Pinens in Alkohol (oder Aceton, Holzgeist usw.) verschiedener Stärke kurvenmäßig darstellt, so erhält man, wenn man als Abszissen die verschiedenen Alkoholkonzentrationen in Volumprozenten, als Ordinaten die ihnen entsprechenden Löslichkeiten von Pinen in Molen pro Liter verdünnten Alkohols aufträgt, eine Kurve, die sich bei absolutem (zooprozentigem) Alkohol der Ordinatenachse asymptotisch nähert (die Löslichkeit ist »unendlich(t, d. h. es ist Mischbarkeit in jedem Verhältnis vorhanden), während mit fallendem Alkoholgehalt, -d. h. steigendem Wassergehalt, die Löslichkeit fällt, um bei o Prozent Alkoholgehalt, also bei Wasser, auf etwa o zu sinken, wodurch die Kurve zur Abszissenachse tangential wird. Einen ähnlichen Habitus wird auch die entsprechende Löslichkeitskurve des Nopinens haben, d. h. Anfangs- und Endpunkt dieser Löslichkeitskurve des Nopinens werden dieselben sein wie die der Pinenkurve, jedoch wird der Verlauf dieser zwei Kurven, des Pinens und des Nopinens, zwischen den zwei Punkten verschieden sein. Die kleinsten Löslichkeitsunterschiede-Ordinatendifferenzen sind bei sehhohem oder sehr niedrigem Alkoholgehalt. Es ist aber eine Stelle vorhanden, wo diese Differenz ein Maximum erreicht, und die diesem Punkte entsprechende Alkohol- (bzw. Lösungsmittel-) Konzentration ist die beste, um das löslichere Produkt, d. h. das Nopinen aus dessen Gemischen mit Pinen (z. B. franz. Terpentinöl) herauszuwaschen.If you consider the solubilities of pinene in alcohol (or acetone, wood spirit etc.) of different strengths, one obtains if one uses as the abscissa the various alcohol concentrations in percent by volume, as ordinates theirs plots corresponding solubilities of pinene in moles per liter of dilute alcohol, a curve which becomes asymptotical in the case of absolute (zoo percent) alcohol on the ordinate axis approaches (the solubility is »infinite (t, i.e. it is miscibility in every ratio present), while with decreasing alcohol content, -d. H. increasing water content, the solubility drops to about 0 percent alcohol content, i.e. water o to decrease, making the curve tangential to the abscissa axis. A similar one Habitus will also have the corresponding Nopinens solubility curve, i.e. H. The start and end point of this Nopinens solubility curve will be the same like that of the pine curve, but the course of these two curves, pinning and of the nopinens, be different between the two points. The smallest differences in solubility-ordinate differences are with a very high or very low alcohol content. But there is a place where this difference reaches a maximum, and the alcohol corresponding to this point (or solvent) concentration is the best to get the more soluble product, i.e. H. to wash the napine out of its mixture with pinene (e.g. French turpentine oil).

Die Löslichkeitskurven und damit die Differenzen ändern sich mit ändernder Temperatur, und es ist ein leichtes, sowohl für die Löslichkeitsdifferenz wie auch für die Temperatur ein Optimum herauszufinden.The solubility curves and thus the differences change with changing Temperature, and it is an easy one, both for the solubility difference as well to find an optimum for the temperature.

_- So läßt sich z. B. aus franz. Terpentinöl mittels wiederholten Waschens mit 65- bis 72prozentigem Alkohol bei gewöhnlicher Temperatur ein etwa 8o- bis 82prozentiges Nopinen herauswaschen._- So z. B. from French Oil of turpentine means repeated Washing with 65 to 72 percent alcohol at ordinary temperature for about Wash out 8 to 82 percent nopinen.

Die Löslichkeit des a-Pinens in 72prozentigem Alkohol ist etwa 2 Prozent, die des Nopinens ist etwa 9 Prozent; die Löslichkeit des a-Pinens in 65prozentigem Alkohol ist etwa o,6 Prozent, des Nopinens 3.3 Prozent ungefähr bei 15' C. Diese Löslichkeiten verschieben sich um etwa 3o Prozent nach oben bei Anwendung von Isopropylalkohol und um etwa 2o Prozent nach unten bei Anwendung von Methylalkohol. Die Unterschiede bleiben aber, im Gegensatz zu den bei Camphen beobachteten Verhältnissen, gleich.The solubility of a-pinene in 72 percent alcohol is about 2 percent, that of Nopinens is about 9 percent; the solubility of a-pinene in 65 percent Alcohol is about 0.6 percent, the Nopinens 3.3 percent about 15 ° C. This Solubilities shift up about 30 percent when using isopropyl alcohol and down about 20 percent when using methyl alcohol. The differences however, in contrast to the conditions observed in camphene, remain the same.

Das Verfahren läßt sich großtechnisch ohne Schwierigkeit durch gewöhnliche Extraktionsanlagen jener Art, wie sie etwa zur Extraktion eines flüssigen Bestandteiles aus Flüssigkeitsgemischen mittels flüchtiger Lösungsmittel in Verwendung stehen (z. B. Phenose aus Teerölen mit Ätznatronlösungen), ausführen; solche Anlagen besitzen auch alle Einrichtungen zum ständigen Regenieren der Extraktionsflüssigkeit, Das mittels dieses Verfahrens gevxonnene Nopinen soll zur Synthese chemischer Produkte (Terpinhydrat, Borneol) verwendet werden.The process can be carried out on an industrial scale without difficulty by ordinary extraction systems of the type, such as those used for the extraction of a liquid component from liquid mixtures by means of volatile solvents are in use (e.g. phenosis from tar oils with caustic soda solutions), perform; Such systems also have all the facilities for constant regeneration of the extraction liquid, The Nopinen obtained by means of this process is intended for the synthesis of chemical products (Terpin hydrate, borneol) can be used.

Claims (1)

PATENT-ANs-PRUcFI: Verfahren zum Abtrennen von Nopinen aus Pinen-Nopinengemischen, dadurch gekennzeichnet, daß Gemische dieser beiden Terpene mit mit Wasser verdünnten organischen Lösungsmitteln, deren@wäßrige Verdünnung je mach der angewandten Temperatur wechselt, systematisch ausgelaugt werden, und daß das in die Waschflüssigkeit übergegangene Nopinen in entsprechender Weise, etwa durch Fällung oder fraktionierteDestillation, abgeschieden wird.PATENT-ANs-PRUcFI: Process for the separation of nopines from pinene-nopine mixtures, characterized in that mixtures of these two terpenes are diluted with water organic solvents, whose aqueous dilution depends on the temperature used changes, are systematically leached, and that that which has passed into the washing liquid Nopinen in a corresponding manner, for example by precipitation or fractional distillation, is deposited.
DEA43547D 1924-11-19 1924-11-19 Process for separating napins from pinene-napins mixtures Expired DE427418C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA43547D DE427418C (en) 1924-11-19 1924-11-19 Process for separating napins from pinene-napins mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA43547D DE427418C (en) 1924-11-19 1924-11-19 Process for separating napins from pinene-napins mixtures

Publications (1)

Publication Number Publication Date
DE427418C true DE427418C (en) 1926-04-08

Family

ID=6933706

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA43547D Expired DE427418C (en) 1924-11-19 1924-11-19 Process for separating napins from pinene-napins mixtures

Country Status (1)

Country Link
DE (1) DE427418C (en)

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